Sparking device.



I. W. GILES 65 C. W. TOBEY. SPARKING DEVICE. A'PPLIGATION FILED MAR. s, 1909.

947,155, Patented Jan.18,1910. 2 santes-SHEET zA )Tu Q e f@ CHARLES/V 7055 UNrrED sfrATEs PATENT urinoir.

ISAAC WILLARD GILLES, OF NEW BEDFORD, AND CHARLES `W.V TOBEY, FAIRHAVEN, v y

' MASSACHUSETTS.

SPARKING DEVICE.

Specification of Letters Patent.

lmnlioation led March 3, 1909.

Patented J an. 18, 1910.

semi Ne. 4151,08r

To all whom 'it muy concern:

Be it known that We, ISAAC W. Giens und Ciri'AnLns W. Toner, citizens of the United States, und residents, respectively, of New Bedford and Fairhaven, in the county of Bristol and Stute of Massachusetts, have made certain .new and useful Improvements in Smirking Devices, ci which the follow ing is s specification.

Our invention relates to means for generating a. current of highpotential for use in connection With :i sparking device such .as is commonly used in explosive engines, und it consists in the combinations, constructions, and arrangements herein described and claimed. n

An object of our invention is to provide a circuit breaker on an induction coil which will give one ierge spark instead of u succession of sparks, such as those produced by the ordinary form of vibrator'.

A turt object is to provide ineens by wh the core ot the coil may be thoroughly magneti/fied betere the breek: occurs.

Other objects and advantages will appear in the i'oliowing specification und the novel :tentures ot' thc device will be particularly pointed out :in the appended claims.

Our invention is illustrated in the eccompnnying drawings in Which- Figure l is s, view showing the circuits,

'part of the induction coil being shown in ction. Fig. 2 is a sectional view of part of the ooit showing the armature in its shifted position. lFig. 8 is a pla-n'view of the plete :1nd spring, and Fig'. 4 is e. plan view of the insulating block.

ln carrying out our invention We provide :i frame to which are secured the coils B and C, the insulating block D and the brass plete E. Esch oi. the coils has a 4primury of coarse Wire, shown at b". and o's respectively. Thesc primary coils ure arranged in series es siiown in Fig. l. secondary Zig and the coil C a shunt winding c2 of fine wire und relatively high resistance. The insulatingl block D is provided with the Contact pieces al and al", which are held by the binding screws da and d4, respectively. The core c of the coil C projects through the insulating block D, its end being covered by u felt cushion c'.

Secured to the frame above the block l) is the plate E, This is provided'with n spring e having n tongue e punched therefrom.

-side of the plate E.

The coil B hasv u.

The lutter has :i Contact point c2 at its end and another ci at its central part while the free end of the spring e bears the armature J. A felt cushion' y is secured to the under- The battery F, the timer the condensers H and I und the spark plug K complete the apparatus. The parts are connected up as shown in Fig. l.

The operation of the device is as follows. `fitzirting at the positive pole ot' the buttery l? the current iows through the conductor l, the plate E, springe, tongue e', contacts e und d which normally together, (Z3, through primary Winding b on coii B, mein winding c on coil 3,. conductor f2, timer G on the engine shaft and to battery throiixgh Wire 3. The ina-griet c pulis down armature J until contacts e und d2 come together, shunting e snnil amount of current through the high resistance Winding c2 which assists in pulling the armature still lower down. The contact d2 now forms a fulcrum for the tongue c of the spring e which lifts contact e2 sway from d (es the armature Jl goes farther down) und breaks the primary circuit. The induced current in the secondary 'Winding 2f? causes the spark to jump at the plug K. The purpose of the condenser I, which is in the secondary circuit is to nog ment the s urli. The current stili continues, however, txrough the shunt Winding c2 und the armature J is therefore held down until the contact g on the timer G has passed its spring g. This current is so smell. that the spark at the timer docs not burn sway hese contacts. 'A soon as the contact g leaves the spring g` the armature .l returns to its normail position. The felt cushions and y deaden the sound of the striking. of the armature. The device will work equally as well by disconnecting the high resistance windin c on the magnet C.

1. In e sparking mechanism, an induction device comprising a transformer coil, an

electro-magnet, a spring provided Witli'- an,-

armature and having an integral tongue'v bearing u pair of contacts, an insulated block having e. pair of contacts arranged to be engaged by the-respective contacts on seid ton e, one of the contacts on said block` und sai tongue being in normal engagement, and the other contacts being adapted to be brought into engagement by the movement of the armature toward the magnet und t0 los' act as A fuicrum 'to seperate the rst-nemeol l project through said insulating block, n pair 25 contacts. Y

2. in e sparking meelienism, an induction device comprising en. armature coil, an electro-magnet, e. supporting lute, a spring sccuretl thereto and previee With an ernlature and en integral tongue, e Contact et the end et be tongue and ene at the center, en insulating block previded with contacts arranged te engage the respective contacts en seid tongue, one o" the contacts on the tongue and on the bioclr being'normaily in en@ ement to complete the circuit through the n, imery of the transformer coil, and the other et seid contacts being arranged to en gege when the armature is attracted and to serve et ulcrum te force the firstmamed. contacts apart, thereby breaking the circuit through the primary and inducing e circuit in the secoiiderj; of the transformer coil.

3. En e sparking mechanism, e i'ramefe transformer coil secureci to seid frame, an ineuie'ting bie/ck carried by the frame, en eiectro'n'iugnet having a, cere arranged to of contacts carried by said block, a supporting plate secured to Seid frame, a s ring attached to mid supporting plate an having en armature and contacts arranged to engage the respective contacts on the insulating block, one of said contacts serving to complete the circuit through the primary coil and the other of said contacts adapted to act as a fulcrum tomove the first-named Contact out of position, for breaking the ourrent in the primary Winding and there@r inducng a current in the secondary winding.

ISAAC WILLARD GILES. CHARLES W. TOBEY.

VVitneeses to tlie signature of Isaac W`.

Giles:

ROBERT BETAGH, CHARLES "V. Conn. 

